The PLC controlled system which is used to control step-motor and electric welding machine is introduced in this paper, and automatic control of T-type channel Joints is realized.
利用可编程序控制器（PLC）控制步进电机和电焊机，实现T型管道接头焊接的自动化控制。
The elements and the whole sets of construction design of the automatic steel-pipe electric welding machine were introduced. The composition of hardware and software of the systems were also designed.
介绍了其焊接原理及整机的构造设计方案，并给出了焊接过程控制系统的硬件构成和软件结构。
The elements and the whole sets of construction design of the automatic steel-pipe electric welding machine were introduced. The composition of hardware and software of the systems were also designed.
介绍了其焊接原理及整机的构造设计方案，并给出了焊接过程控制系统的硬件构成和软件结构。
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